Forged 6-Piston Caliper
Two-piece forged aluminum body, nickel-plated finish, and staggered 28 / 34 / 40 mm pistons deliver progressive bite and stable modulation.
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Racing Series · Rally / Endurance / Drift · Front Axle · 6-Piston
A front-axle competition brake package built around a two-piece forged aluminum 6-piston caliper, a Ø320 mm × 34 mm two-piece wave-slot rotor, and a 0–600 °C race pad window. Engineered for teams that need repeatable pedal feel under sustained thermal load — not a one-stop hero kit.
This is a motorsport system for stage rally, tarmac rally, endurance circuit programs, drift builds, time attack, and HPDE cars that need stable bite over repeated brake events. Bootless racing pistons, race pads, and an application-specific install workflow assume a team that inspects, services, and beds brakes properly.
Two-piece forged aluminum body, nickel-plated finish, and staggered 28 / 34 / 40 mm pistons deliver progressive bite and stable modulation.
Total piston area of 55.6 cm² per caliper gives strong front-axle authority for rally, endurance, drift, and circuit use.
Ø320 mm × 34 mm heat-treated high-carbon cast iron disc on a CNC aluminum hat, internally vented and left/right specific.
0–600 °C operating range with average μ ≈ 0.38. Pads are intended for iron / steel rotors only and require proper bedding before competition use.
Bootless racing pistons reduce drag and support motorsport service intervals, including regular seal inspection, cleaning, and fluid changes.
Caliper bracket geometry, rotor mounting style, brake line fittings, and wheel clearance are confirmed against your chassis and wheel package.
| Brake Caliper | |
|---|---|
| Series | Racing Series — Rally |
| Model / Application | PB6 Water-Cooled |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | Racing pistons without dust boots |
| Piston Diameter | 28 mm × 2 / 34 mm × 2 / 40 mm × 2 |
| Caliper Dimensions | L 280 mm × W 169 mm × H 85 mm |
| Total Piston Area | 55.6 cm² per caliper |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 3.44 kg per caliper, without pads |
| Surface Finish | Nickel-plated |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø320 mm × 34 mm |
| Brake Rotor | |
| Rotor Material | Heat-treated high-carbon cast iron |
| Axle Position | Front |
| Rotor Dimensions | Ø320 mm × 34 mm |
| Construction | Two-piece rotor assembly |
| Ventilation | Internally vented |
| Mounting | Fixed or floating, depending on rotor size and vehicle application |
| Rotor Hats | CNC-machined high-strength aluminum alloy rotor hats |
| Directional Design | Yes — left/right specific |
| Face Pattern | Wave Slot |
| Brake Pads | |
| Compatible Rotors | Iron / steel only |
| Operating Temperature | 0–600 °C |
| Average Friction Coefficient | μ ≈ 0.38, varies with temperature, line pressure, and rotor condition |
| Bedding-In Procedure | Required before competition use |
| Lines, Brackets & Service | |
| Brake Line Construction | Three-layer reinforced |
| Brake Line Material | PTFE inner liner / SUS304 stainless braid / PVC outer sheath |
| Caliper Mounting | Radial mount with vehicle-specific caliper brackets |
| Caliper Brackets | CNC-machined carbon-steel radial-mount caliper brackets |
| Brake Line Fittings | Vehicle-specific; caliper-side and chassis-side fittings vary by application |
| Minimum Spoke Clearance | 97 mm |
| Wheel Clearance | 17 in or larger wheel required; offset and barrel profile must be verified against the caliper envelope |
| Service Requirement | Regular seal inspection, cleaning, fluid management, and competition service interval required |
Minimum spoke clearance is 97 mm. Offset and barrel profile still need to be verified against the PB6 caliper envelope: L 280 mm × W 169 mm × H 85 mm.
2 × PB6 Water-Cooled front two-piece forged 6-piston calipers with nickel-plated finish.
Brake pads for both front calipers, rated 0–600 °C and intended for iron / steel rotors.
2 × front two-piece internally vented wave-slot rotors, Ø320 mm × 34 mm, left/right specific.
Vehicle-specific CNC-machined carbon-steel radial caliper brackets for correct front caliper position and alignment.
CNC-machined high-strength aluminum alloy rotor hats matched to front hub geometry and rotor offset.
Vehicle-specific stainless braided front brake lines with PTFE inner liner, SUS304 braid, and PVC outer sheath.
Every PB6 Water-Cooled front racing system is engineered around the vehicle’s front knuckle, hub location, rotor hat offset, wheel barrel, spoke clearance, brake line routing, front brake bias target, suspension package, series technical regulations, and intended rally, endurance, drift, time-attack, or HPDE use. The goal is not a generic universal fit; the goal is a front brake package that works with your chassis geometry and delivers repeatable pedal feel under sustained thermal load.
We review the vehicle, wheel and offset, suspension package, series technical regulations, competition format, front brake behavior target, brake cooling strategy, rear brake pairing, and whether the car uses OEM or custom front uprights.
For OEM knuckles, provide vehicle details, wheel specs, wheel offset, spoke profile, suspension setup, and series rules. For custom uprights, provide CAD files, technical drawings, hub-face data, rotor mounting dimensions, or accurate bracket mounting-point measurements.
TTSPORT confirms caliper bracket geometry, rotor mounting style, rotor hat offset, brake line fittings, wheel clearance, pad and rotor compatibility, bedding requirements, and final fitment details before quoting and production.
If you are unsure whether your wheel, front knuckle, rotor offset, series rules, brake cooling strategy, or brake line routing is suitable, Contact us before ordering so the engineering team can review the build details.
Motorsport use disclosure: Racing pistons without dust boots, race-compound pads, and high-carbon rotors are intended for competition vehicles maintained on a motorsport service interval. They are not recommended for low-maintenance street driving.
It targets endurance, rally, drift, and circuit programs that load the front axle with sustained heat. The 6-piston forged caliper, two-piece Ø320 mm × 34 mm wave-slot rotor, and racing pad window, 0–600 °C, are sized for repeatable stops rather than a single hot lap.
No. The PB6 Water-Cooled is a Racing Series build. Caliper brackets, rotor mounting, fixed or floating, and brake line fittings are confirmed per chassis through the engineering workflow. Send your vehicle, wheel spec, and series rules before ordering.
17-inch or larger wheels are required, with a minimum spoke clearance of 97 mm. Offset and barrel profile still need to be verified against the caliper envelope, L 280 mm × W 169 mm × H 85 mm, for your specific wheel.
Racing pistons without dust boots reduce drag and tolerate higher sustained caliper temperatures. They assume a motorsport service interval — regular seal inspection, cleaning, and fluid changes. They are not recommended for daily street use.
The kit ships with a race compound rated 0–600 °C, average μ ≈ 0.38, on a heat-treated high-carbon cast iron Ø320 mm × 34 mm two-piece rotor with wave-slot face and directional vanes. Pads work on iron / steel rotors only.
Yes. A proper bed-in is mandatory to transfer pad material evenly to the rotor and stabilize the friction layer before competition use. Skipping bed-in causes judder, inconsistent μ, and short pad life.
Send your chassis, wheel package, suspension setup, and intended series. TTSPORT will confirm bracket geometry, rotor mounting style, line fittings, and clearance before quoting.
Brake Kits · Fitment · Installation · Care Guide
A brake kit is not just a pair of larger calipers. Calipers, rotors, pads, hoses, brackets, rotor hats, mounting hardware, brake fluid, wheel clearance, and bedding procedure all work together as one system.
This guide explains how to confirm the right TTSPORT brake kit before ordering, what to check before installation, and how to care for the system after installation.
Do not order a brake kit by vehicle name alone. The correct kit depends on the vehicle, axle position, wheel package, driving use, and brake system layout.
Brake kits are application-specific. A visually similar kit can still have the wrong rotor offset, bracket geometry, hose fitting, caliper position, or wheel clearance requirement.
Different TTSPORT brake kit series use different hardware layouts. Always confirm what the kit includes before purchase.
Use direct-mount calipers and one-piece rotors where specified. These kits do not use rotor hats or caliper brackets unless the final product page clearly states otherwise.
Use separate friction rings and rotor hats. Hat offset, ring bolt pattern, hardware style, and rotor direction must be matched correctly.
May require bespoke brackets, rotor hats, brake lines, and engineering confirmation based on knuckle, hub, wheel, and competition use.
Require extra attention to wheel clearance, tire size, vehicle load, descent control, hose routing, and dust / water exposure.
Do not assume every brake kit includes the same parts. Package contents vary by product series, vehicle application, and final order configuration.
Before finalizing the order, review the kit specification carefully. Confirm the brake kit is matched to your vehicle and wheel setup, not only to the model name.
If any part is not listed in the final order or product page, do not assume it is included.
Inspect every component before installation. Do not modify, grind, drill, stretch, force, or space brake kit components to make them fit.
Safety: Brake kits affect braking force, hydraulic sealing, heat control, wheel clearance, and vehicle stability. Do not install the kit if fitment, torque, direction, clearance, or compatibility is unclear.
Correct installation is as important as the brake kit itself. A properly engineered kit can still perform poorly if installed with dirty mounting faces, incorrect torque, poor hose routing, or trapped air in the hydraulic system.
Verify caliper centering over the rotor and confirm even pad sweep across the friction surface.
Confirm left / right rotor direction if the rotor uses directional vanes or directional face pattern.
Check brake hose length and routing at full steering lock and full suspension travel. No twisting, rubbing, stretching, or kinking.
Check caliper-to-spoke and caliper-to-barrel clearance before road use. Wheel diameter alone is not enough.
Use the correct brake fluid type and bleed the system until pedal feel is firm and consistent.
Torque all brake hardware to the specified value. Do not reuse damaged, unknown, stretched, or corroded safety-critical fasteners.
Brake pads and rotors need a controlled bedding process before full performance is available. Bedding helps create an even transfer layer on the rotor surface, improving bite, pedal consistency, and vibration resistance.
Street pads, race pads, iron rotors, two-piece rotors, and carbon ceramic rotors may require different bedding procedures. Use the procedure supplied with the specific kit.
After installation and bedding, give the system a short break-in period before aggressive use. Pedal feel, pad contact, dust output, and noise may continue to settle after the first drives.
Brake kits need regular inspection, especially after track use, off-road use, towing, mountain driving, winter salt exposure, or any brake service.
Inspect pads, rotors, fluid level, and hose condition during normal service intervals. Prioritize quiet operation, smooth pedal feel, and even wear.
Check pad thickness, rotor surface condition, and fluid condition more often. Long descents create sustained heat even without track use.
Inspect for mud, sand, stone impact, hose abrasion, dust boot damage, and caliper contamination after trail use.
Inspect pads, rotors, fluid, and hardware before and after every event. Track heat shortens service intervals.
Check rear brake temperature, hydraulic handbrake behavior, pad wear, rotor cracking, and hardware condition frequently.
Use only compatible pads and approved bedding procedures. Inspect rotor surface condition carefully and avoid incompatible friction materials.
Do not continue driving if the brake system shows any of the following symptoms. Inspect the system or contact a qualified brake technician before using the vehicle again.
Send your vehicle details, brake kit series, wheel specs, driving use, photos, and any symptoms you notice. TTSPORT will help confirm fitment, installation checks, and the correct care path for your brake kit.
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